Suitable Size: The portable dog trainer measures 13.7 x 5.5 x 2.5cm / 5.39 x 2.16 x 0.98inch; small size, does not take up space, light to carry; put in your pocket and hold in hand when you need it; to use Premium Material: The material of this handheld dog trainer is plastic, it is safe and reliable, not easy to wear and tear, durable, can be used for a long time , it makes the dog bark for you, but it is not harmful. to the dog. Ultrasonic Bark Control: This portable dog trainer uses ultrasonic technology; it produces ultrasonic waves when applied; ultrasonic frequencies will prevent your dog from barking; suitable for all breeds and sizes of dogs; sound frequencies are safe for pets, not for the human ear. But do not apply it for too long, it may have no effect on the dog Easy to use: open the battery cover first, then insert the 9V battery, turn on the switch, it can be used to train the dog, just charge the battery and it can work normally. If necessary, it can be used as a
